Wire fabric



PATENT OFFICE.

KASPAB I. DIETHELM, OF NEW YORK, N. Y.

WIRE FABRIC.

Application filed December 22, 1917.

'1 0 all whom it may concern:

Be it known that I, KAsrAn I. DIETI-IELM, a citizen of Switzerland, residing at New York city, in the county of Bronx and State of New York, have invented certain new and. useful Improvements in Wire Fabrics, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in screens or wire-mesh products, and is more particularly intended and adapted for use in connection with screens adapted to be rolled upon a shaft or spindle such as a shade roller.

In Figure 1 I have illustrated in plan view a section of screen or fabric embodying an application of my invention. Fig. 2 is a similar view illustrating modifications, and Fig. 3 is another similar view illustrating other modifications.

In the form of screen illustrated in Fig. 1 the wire 4 crosses the wire 5 and loops with the wire 6 at 7 as shown, again crossing the wire 5 twice and again looping with the wire 6 as shown, while the wire 5 loops with the wire 15 as indicated at the intermediate point 8 as shown, each pair of wires such as if 5 forming a substantially straight line of diamond-shaped figures; whereas in Figs. 2 and 3 a pair of zigzagged strands are looped at their adjacent corners and another pair are interlaced between the first pair and also looped at their adjacent corners, crossing the first pair at right angles about midway between corners, while another pair of zigzagged strands are looped between the loops of the first pair. In Fig. 2 the wire 9 continues the length of four squares, as shown, looping with the wire 10 at 11; and in Fig. 3 the wire 12 extends for only three squares, as shown, looping with the wire 13 at 14 as indicated. In other words, in Fig. 3, a pair of zigzag wires 1213 are looped at their adjacent corners. another pair 16-17 interlock with the first pair, and a third pair 18-19 interlock with the first two pairs, all strands being straight Specification of Letters Patent.

Patented J uly 26, 1921.

Serial No. 203,407.

except at the corners. From the foregoing it will be seen that the most flexible form is shown in Fig. 1, each length of wire coverng only two squares, whereas in Fig. 3 it covers three squares, and in Fig. 2 it covers four squares. In each instance, however, there is rigidity imparted to the screen where each wire crosses the other, the flexibility or pivotal. point only being at the line along which the loops are formed, thus facilitating the rolling of the screen upon the rod or roller, the form shown in Fig. 1 being best adapted for a roller of less diameter.

In the use of a screen of this fabrication it has been found that there is less tendency for the several sections to crinkle up or overlap, and the fabric has been found to possess better rigidity and stiffening and to retain its uniformity of appearance to better advantage while at the same time being strong and durable and particularly well adapted for roller screens such as may be applied to windows for keeping out flies or mosquitoes, and. for fire screens, concrete reinforcement, etc.

(if course it will. be understood that various modifi rations may be made in the constriu-tion and arrangement of parts without departing from the spirit of the invention as claimed.

I claim In a fabric of the class described, a pair of zigzag strands looped at their adjacent corners, another pair of zigzag strands in terlocked with said first pair and also looped. at their adjacent corners and crossing said first pair si'ibstantially at right angles and between said corners, and a third pair of zigzag strands interlocked with said first two pairs, all of said strands being straight except at said corners.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

KASPAR I. DIETHELM.

lVitnesses:

ETHEL GARDNER, DAVID H. DOUGLASS 

